Abstract

Enhanced electroluminescence(EL) was observed with increasing carbon nanotube concentration in the MEH-PPV/SWCNT composites, where MEH-PPV and SWCNTs correspond to poly[2-methoxy-5-(-ethyl-hexyloxy)--phenylene-vinylene] and single-walled carbon nanotubes, respectively. Spatially separated conduction paths of the two distinct charge carriers, induced by blending SWCNTs with MEH-PPV, may explain the enhanced EL.

Received 08 May 2007Accepted 14 June 2007Published online 11 July 2007

Acknowledgments:

This work was supported by the Korea Science and Engineering Foundation (User Program of Proton Engineering Frontier Project and M60504000021-05B0400-02110) and by the Korea Research Foundation (Grant No. KRF-2004-005-C00060 and the Second Brain Korea 21 Project). This work was also supported by the Seoul Research and Business Development Program (Grant No. 10583). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.